Concerning the Motion of FTEs and Attendant Signatures

Details Concerning the Motion of FTEs and Attendant Signatures Concerning the Motion of FTEs and Attendant Signatures

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsm23b..03s&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SM23B-03

Physics

[2723] Magnetospheric Physics / Magnetic Reconnection, [2724] Magnetospheric Physics / Magnetopause And Boundary Layers, [2728] Magnetospheric Physics / Magnetosheath

Scientific paper

During intervals of southward IMF orientation, transient reconnection along multiple extended reconnection lines generates flux transfer events with large east-west extents that move poleward towards the cusps. We present results from global 2.5- and 3-D hybrid code numerical simulations indicating that events frequently remain nearly stationary on the subsolar magnetopause where their dimensions gradually increase, but ultimately accelerate to speeds one Alfven velocity greater than the ambient flow in the vicinity of the cusps. As they reach these velocities, the events generate wakes of enhanced density and depressed magnetic field strength that extend outward into the magnetosheath. We compare simulation predictions with those for magnetohydrodynamic flow around thin cylindrical obstacles and spacecraft observations.

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